Pith Number

pith:NTRDRESR

pith:2013:NTRDRESR4USC6HFXJWNVTNFZ6G

not attested not anchored not stored refs pending

Covariant Photon Quantization in the SME

Don Colladay

arxiv:1309.5890 v1 · 2013-09-23 · hep-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NTRDRESR4USC6HFXJWNVTNFZ6G}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:37:19.318291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ce2389251e5242f1cb74d9b59b4b9f1966cdd2f56745cdcf01f07371b6d0adb

Aliases

arxiv: 1309.5890 · arxiv_version: 1309.5890v1 · doi: 10.48550/arxiv.1309.5890 · pith_short_12: NTRDRESR4USC · pith_short_16: NTRDRESR4USC6HFX · pith_short_8: NTRDRESR

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NTRDRESR4USC6HFXJWNVTNFZ6G \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6ce2389251e5242f1cb74d9b59b4b9f1966cdd2f56745cdcf01f07371b6d0adb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b0c0522db198dd19a70968edf209bdf285dc7678292b27562d99b84bc5bf630",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2013-09-23T17:36:36Z",
    "title_canon_sha256": "ade97d4336672ca17524817ef3eb05a1124335bdf4c462def6ede555cf3699da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5890",
    "kind": "arxiv",
    "version": 1
  }
}